Calk extractor and anvil



April 15, 1924.

J. A. KERR CALK EXTRACTOR AND ANVIL I Filed Feb. 12 1923 Patented Apr. 15, 1924.

UNITED STATES JAMES ALEXANDER KERR, OF DULUTH, MINNESOTA.

CALK EXTRACTOR AND ANVI L.

Application filed February 12, 1923.

To all whom it may concern:

Be it known that 1, JAMES A. KERR, a citizen of the United States, residing at Duluth, in the county of St. Louis and 6 State of Minnesota, have invented certain new and useful Improvements in Calk Extractors and Anvils, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a calk extractor and anvil, and has special reference to a device particularly designed for the extracting of horseshoe calks which are applied to a horses shoe by forcing them tightly into a hole such as are now commonly used.

These oalks are now frequently applied and removed from a shoe while on a horses foot, and the ordinary procedure, when the calk is applied, is simply to drive them by repeated forceful blows into the holes in the shoe. This, when done upon the heels of a horses hoof, frequently results in serious damage to its foot, oftentimes producing lameness in the animal for days thereafter. When the calks are removed a Wedge-like instrument is forced under the shoulders of the calk by driving it laterally with a hammer which may produce very undesirable shocks and stress upon the horses hoof, besides frequently loosening the shoe.

To avoid these inhumane and damaging results is the principal object of my present invention, though other ob'ects and advantages of the novel device wifl become evident as the description thereof proceeds.

Referring now to the accompanying drawing forming part of this application in which like reference characters indicate like parts:

Figure 1 is a central vertical section through one of the improved extractors and anvils;

Fig. 2- is a top plan view of the same;

Fig. 3 is a view similar to Fig. 1, though of a modified form; and

Fig. i is an elevation of a common horseshoe calk.

1 represents the body portion of the instrument which will be referred to hereafter as the anvil, the same being somewhat flattened in general form though rectangular in cross-section and terminating at one end as at 2 in a. suitable handle-like shape to be grasped conveniently in the hand, while the main body portion is hollow hav- Serial No. 618,518.

ing the rectangularly-shaped chamber 3 therein opening the full width thereof forwardly through the end opposite to that on which the handl is formed. The upper wall of the body portion projects beyond the entrance into the chamber as at at, while the lower wall terminates some distance back from the end of the upper wall and has a downwardly projecting lip 5, the same being preferably at right angles to the body portion. This lip may be reinforced by suitable fillet brackets formed integral with the body portion, and the whole anvil may be of wrought or cast metal as desired. The space between the face of the lip 5 and the front edge of the projection e. is preferably substantially that which exists between the outermost edge of an ordinary horseshoe indicated at 7 and the adjacent edge wall of a calk hole therein, so that when the anvil is placed up against a shoe for example on a horses foot, said shoe having a calk protruding therefrom, the edge of the projection 4 will impinge against the face of the calk, while the face of the lip will similarly engage the edge of the shoe; this being the position shown in Fig. 1 of the drawings and that which would result when the extractor and anvil is being employed for the purpose intended.

Within the chamber 3 is loosely fitted the flat extracting bit 8 which is provided with the central elongated slot 9 therein, and which slot intermediate of its ends and upon either side thereof is considerably widened in the form of a semicircle indicated at 10. The edges of this slot, from the upper side of the bit, are inclmed inwardly and downwardly resulting in an elliptically-shaped concaved portion indicated at 11.

A through rivet or bolt 12 is mounted intermediate of the brackets 6 of the anvil just back of the lipv 5 thereon and which bolt, when the bit 8 is in place in the anvil, is within the slot 9, thus preventing its being accidentally separated from the anvil. The widening 10 of the slot 9 in the bit is for the purpose of permitting the bit to be placed downwardly over the calk, as the wings thereof project beyond the shank of the calk forming the shoulders under which the beveled edges of the bit are engaged for extracting purposes.

In operation the bit is simply withdrawn to its outermost position, when the anvil is so adjusted that the bit is brought down over the call: with the two butting faces of the anvil against the call: and shoe as before described, when a light blow or two on the end of the bit will force it towards the anvil which is simultaneously held tightly against the shoe and the call: and will result in its ready extraction without the injurious lateral ar experienced in the absence of a holding-on element.

The form of the bit being double-ended as it were permits of ready reversal of its ends within the anvil in the event of excessive wear so that the life thereof is practically doubled, the rivet l2, of course, having to be removed "when such reversal is accomplished.

9 In the modified form shown in Fig. 3 the bolt 12 is simply changed to a. driving rectangularly-shaped tapered member illustrated at 13, and the inner edge of the innermost end of the slot 9 in the bit 8 is rounded as at 14, so that when the bit is placed over a call: in the horses shoe, the wedging member or key 13 being fully drawn out 'Wardly, all that is necessary to extract the calk is to drive the key 13 downwardly which tendsto contract or draw together the bit and the anvil, thus accomplishing exactly the same results, though possibly in a more desirable manner than the striking of the endof the bit with a hammer.

i Vhen a call; is being driven into a shoe on a horses foot the projecting end 4c of the anvil, or the handleend, becomes convenient for holding up against the opposite face of the end of the shoe, for instance at the heel, so that when a blow is struck upon the end of the call: the jar will be taken by the anvil held against the shoe instead of the horses foot, and the instrument being used for the extraction of the old worn calk and convenient of access for such purpose; 7 parent that if the horseshoer is so disposed he might use any piece of heavy iron for a similar purpose.

From the foregoing it is evident that I have not onlyv conceived a convenient and practical combination extractor and anvil otherwise of course it is apfor the purpose set forth, but one having the additional meritorious attribute of encou ing humane treatment of horses.

i121 ving thus described my invention, What l claim aS new and desire to secure by Letters Patent, is:

1. l horseshoe call; extractor and anvil (seer rising; in combination an anvil having lips for engaging simultaneously the calk and shoe, and a projective bit carried within the nril intermediate of said lips havd inclined faces for extracting when forced into the anvil. instrument of the type described comp; g a hollow rectangularlyshaped anvil and a call; extracting bit loosely carried within the anvil.

An instrument of the type described comprising an anvil and a call: extracting bit carried by the anvihsaid bithaving a central opening therethrough for surrounding the callr.

instrument of the type described comprising in combination an anvil and a reversible call; extracting bit.

5. An instriunent of the type described comprising in combination an anvil and a reversible call" extracting bit having-a cen tral opening therethrough for surrounding a. callr, said opening having Wedge-like marginal. edges for liftingengagenient with he calk. V 1

(3. f: horseshoe call; extractorcomprising in combination an anvil. for lateral engagement against a call: and a cooperative reciprcceble era 7 struck l a hammer for extracting the calk.

TI A horseshoe call; extractor comprising 1 in combination an anvil for lateralengagemeet against a. call: and a cooperative re- )c'able extracting member for'wholly surrounding the calk, said member having wedging engagement intermediate of the call: and shoe for extracting the calk.

in testimony whereof I hereunto afiix my signature in the presence of two witnesses.

Jieilldl li ALEXANDER KERR. Witnesses S. C. BRONSON, S. Geo. STEVENS.

acting member adapted to be i 

